30949400 has 24 divisors (see below), whose sum is σ = 71957820. Its totient is φ = 12379680.

The previous prime is 30949363. The next prime is 30949417. The reversal of 30949400 is 494903.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77174 + ... + 77573.

Almost surely, 2^30949400 is an apocalyptic number.

It is an amenable number.

30949400 is an abundant number, since it is smaller than the sum of its proper divisors (41008420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30949400 is a wasteful number, since it uses less digits than its factorization.

30949400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154763 (or 154754 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30949400 is about 5563.2184929230. The cubic root of 30949400 is about 313.9670540304.

The spelling of 30949400 in words is "thirty million, nine hundred forty-nine thousand, four hundred".